The World's 10 Fittest Cars

4. Koenigsegg Agera R

Prepare yourself, for now we enter the realm of the insane. One thousand and one hundred forty-four horsepower is just too much. There is no possible need for humans to have that much power at their fingertips. The only reason for this Swedish freak’s creation is simply to answer the question “Why not?” Running on biofuel, Koenigsegg claims that on special tires the Agera R can hit a ludicrous 440 km/h, or 272.8 mph, although this limit has yet to be officially tested. Featuring an in-house-developed twin-turbo-charged 5.0-liter V8, the Agera has broken six production-car world land speed records, even besting the Veyron's 14.6 second run to 300 km/h by .07 seconds.

3. Ariel Atom V8

What more can you say about this V8-powered go-kart besides holy f*ck sh*t? Powered by a 3.0-liter V8 crafted from two Suzuki Hayabusa engines strapped together, the Ariel Atom V8 is the king of featherweights. Face-melting speed is all this machine was created for.

2. SSC Ultimate Aero CCX

Only five of these 1,300 hp brutes exist. Revving to a 9,200 rpm redline, this celebration of the end of the Ultimate Aero’s production run features enhanced cooling and transmission upgrades in addition to its bored-out 6.9-liter twin-turbo V8. In SSC’s quest to best the Bugatti Veyron’s record-setting top speed, test drivers reported wheelspin at speeds in excess of 190 mph. Call me crazy, but that sounds just a wee bit hairy.

1. Caparo T1

There is really else nothing quite like the Caparo T1 out there. An Ariel Atom on F1-strength steroids, the Caparo T1 was designed by a bunch of engineers behind the equally astonishing McLaren F1. Essentially an F1 race car for the street, Caparo’s fitted the T1 with a 3.5-liter naturally aspirated V8. The car's minuscule curb weight can be attributed to its carbon fiber and aluminum honeycomb monocoque. Designed to exploit high-speed aerodynamic downforce, the T1’s been reported to be a handful at low speeds, lacking the necessary grip to maintain traction. That makes this one car that's actually safer to drive quickly.

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